And what are you supposed to do if they make a determination against you, return to your passport holding country and hire a lawyer?
If the answer is yes, well then it is yet more proof that the US immigration system operates basically extrajudicially just like the IRS and ATF, and only occassionally do the courts pull them back in after much hardship for the plantiff.
Words and policies are supposed to have meaning, and I doubt we'll get any charts or graphs on border refusals per amount of time spent abroad for GC holders.